Haystack

Haystack is an earth dam located in Douglas County, Colorado, built in 1964. It carries a Low hazard potential classification.

About Haystack

The primary purpose of Haystack is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gene & Sherry Tepper (private). It impounds the West Plum Creek near Sedalia.

The dam stands 22 feet tall and stretches 360 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 10/02/1979. That was over 46 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateColorado
CountyDouglas
Nearest CitySedalia
River/StreamWest Plum Creek
Coordinates39.22945, -104.96835

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height17 ft
Dam Length360 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage56 acre-ft
Max Storage56 acre-ft
Normal Storage32 acre-ft
Surface Area6 acres
Drainage Area7 sq mi
Max Discharge2,292 cfs
Spillway TypeNone

Ownership & Safety

PurposeRecreation
OwnerGENE & SHERRY TEPPER
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection10/02/1979
Emergency Action PlanNot Required

Identifiers

NID IDCO00293
Federal IDCO00293
More InfoState Dam Safety Program

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